title: Van Cittert-Zernike theorem with Stokes parameters.
abstract: We formulate the van Cittert-Zernike theorem for spatially incoherent partially polarized sources in terms of the traditional polarization (one-point) Stokes parameters and the coherence (two-point) Stokes parameters. This leads to a physically insightful connection between the source polarization and the field coherence. We show that the far-zone coherence is given by a Fourier relation of the source-plane polarization and apply the results to investigate the far-zone properties of a field emitted by an incoherent source limited by an annular aperture.
authors.affiliation: Department of Physics and Mathematics, University of Eastern Finland, P.O. Box 111, Joensuu FI-80101, Finland. jani.tervo@uef.fi
authors.forename: Jani
authors.initials: J
authors.lastname: Tervo
authors.forename: Tero
authors.initials: T
authors.lastname: Setälä
authors.forename: Jari
authors.initials: J
authors.lastname: Turunen
authors.forename: Ari T
authors.initials: AT
authors.lastname: Friberg